Bosch BOVB 18 Series Installation Instructions Manual page 16

1 6 | Bosch IDS BOVB 18
Wiring for 3H and 1C thermostat
W2
W/E
Y
R
G
C
O/B
TH ERM OSTAT
Note: For single-stage auxiliary
heating (supported by 2H
thermostat), jump W1 and W2
Figure 25
Thermostat Wiring Diagram for BOVB 18/BVA 15 Matched System
Support 3H and 2C thermostat
W/E
Y2
Y
R
G
C
O/B
H/DH
TH E RM O S TAT
Note: Any time the electric heat
elements are active, the indoor fan
will run in highest possible stage
(depends on air handler settings).
Figure 26
Thermostat Wiring Diagram for BOVB 18/BVA2.0 Matched System
Data subject to change
C G R
BVA 15 INDOOR UNIT
Dh C G R
B
BVA2.0 INDOOR UNIT
W1 W2 C
OUTDOOR UNIT
Y2 W1 W2 C
Y1
OUTDOOR UNIT
Installation Instructions
Y B W
Y B W
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